Analysis

  • max time kernel
    151s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 18:03

General

  • Target

    9729f58618e8d6f9f82076ab505afc0090b2e15f5912e67b95718fb6e7e7d8b8.exe

  • Size

    100KB

  • MD5

    085eb4e18b8c457169a2fffb1c9066e6

  • SHA1

    9095bba56686e6dc1e1542ac2ae7dcd4a950678f

  • SHA256

    9729f58618e8d6f9f82076ab505afc0090b2e15f5912e67b95718fb6e7e7d8b8

  • SHA512

    bb1617be13f230c86b4b3357a0c954818c552dc8f95e88a674e3f9e8e30c04b2c992f39be015a3fbbd755ccbd7584fe814efd2dc7a423c29d8613a455aa3119c

  • SSDEEP

    1536:hUqBWUSFNrdN90DukJi/gI7xxtco1MIcN91uIJ++VYVwtSZuhEJAiCi2MIZQwjj+:2GW3B+DukJ45LIFu4+UEC6FISw/lir

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 17 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 63 IoCs
  • Modifies registry class 31 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9729f58618e8d6f9f82076ab505afc0090b2e15f5912e67b95718fb6e7e7d8b8.exe
    "C:\Users\Admin\AppData\Local\Temp\9729f58618e8d6f9f82076ab505afc0090b2e15f5912e67b95718fb6e7e7d8b8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1228
    • C:\Users\Admin\AppData\Local\Temp\Messenger\install.exe
      "C:\Users\Admin\AppData\Local\Temp\Messenger\install.exe" m1_ly
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Windows\lsyfi.exe
        "C:\Windows\lsyfi.exe" /service
        3⤵
        • Executes dropped EXE
        • Modifies registry class
        PID:588
      • C:\Windows\SysWOW64\net.exe
        net start NLPSA
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:680
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 start NLPSA
          4⤵
            PID:1880
      • C:\Users\Admin\AppData\Local\Temp\Messenger\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\Messenger\setup.exe" m1_ly
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:1672
        • C:\Windows\SysWOW64\lsyci.exe
          "C:\Windows\system32\lsyci.exe" /service
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies registry class
          PID:756
        • C:\Windows\SysWOW64\net.exe
          net start winmgmtex
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1488
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start winmgmtex
            4⤵
              PID:1708
      • C:\Windows\SysWOW64\lsyci.exe
        C:\Windows\SysWOW64\lsyci.exe
        1⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1816
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32 "C:\Windows\SysWOW64\ohbxr.dll",DllCanUnloadNow
          2⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          PID:1232
      • C:\Windows\lsyfi.exe
        C:\Windows\lsyfi.exe
        1⤵
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:1784

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Messenger\install.exe

        Filesize

        20KB

        MD5

        77a8d625eb2e0585972b610d644371cd

        SHA1

        5b3a1932fe4ebcecdee450eeac6ad6dce2078808

        SHA256

        18a92c482c6fdb30ac0d0384f165c34018c807f39c79ec74f08047d2a89e86bd

        SHA512

        e4ef5ec88779e75f264ccbc699aee04c7801b09f437c52635751585271ce406c166ee01875747fa9e2bef104abff2718a9740c3bd2f145f19a59d9a4cfb28dae

      • C:\Users\Admin\AppData\Local\Temp\Messenger\install.exe

        Filesize

        20KB

        MD5

        77a8d625eb2e0585972b610d644371cd

        SHA1

        5b3a1932fe4ebcecdee450eeac6ad6dce2078808

        SHA256

        18a92c482c6fdb30ac0d0384f165c34018c807f39c79ec74f08047d2a89e86bd

        SHA512

        e4ef5ec88779e75f264ccbc699aee04c7801b09f437c52635751585271ce406c166ee01875747fa9e2bef104abff2718a9740c3bd2f145f19a59d9a4cfb28dae

      • C:\Users\Admin\AppData\Local\Temp\Messenger\mwsys.txt

        Filesize

        34B

        MD5

        57f46824055ffa1929b1533a1b23c5d3

        SHA1

        6596d10ca76e85d290c16b8d960ac796df5b20c3

        SHA256

        d83be47c672e36f47c460bafa4e3debe6ac256a0e1625b5c79fb0f9d2e3ba7a4

        SHA512

        25033f2c6a22d9b4e5241694d653917777ee9cfc6715035ab701945fe02b4073a824c239c7409dc2d88f06ba3473d9600309e42c170417153053ba4205a5b36c

      • C:\Users\Admin\AppData\Local\Temp\Messenger\nlpsa.txt

        Filesize

        48KB

        MD5

        44567c8c8e3ee00c7425af6a91a942bb

        SHA1

        ca7606b9cda45f899b7d6a2c848f27cf74a5f712

        SHA256

        5cbcbde84990728895fa76768f288d94404aa273e3e19f22b08abf61cfb97c0e

        SHA512

        96cf2cf362fef46bd7060f0869a7c8df6baa3f197294a3bd4e05ff929dcfd3ee02c2ace5d78f35a01c8b273c8542adaffbfdb5bdcb4ec2b75197f6bca31b0137

      • C:\Users\Admin\AppData\Local\Temp\Messenger\nvsys.ini

        Filesize

        44B

        MD5

        a53c6221be50368b645091bed7c49fbd

        SHA1

        c7b382b75fc50609f9abffbc5afa8653b1ac0510

        SHA256

        2d3936d0326657e91e3de93181976806ba9e8f8a44efdb9b598470998b050e98

        SHA512

        12af2c5c48183f0548f874207d639e30f55b8ea0ba2a3aa262e08e2d66664ec3edc6b6258dd9d7cec5f1f99fefae5eba9152d222a432083649c3a8c974838620

      • C:\Users\Admin\AppData\Local\Temp\Messenger\setup.exe

        Filesize

        20KB

        MD5

        25611a17e8fa86c06f72805ee366bf88

        SHA1

        c2545e739bb3e5c8e6444ca2f2e862c2f96efce7

        SHA256

        5a7170ed849ce5d0c68d692242e49b93d92cf42b61f26bdfd267b814bb16d87b

        SHA512

        bc71e5f5830db7532e88fa25ba231ab0a1b50b48c0e46e309793fb1ee4c00e9b3aa0f1f39a2df0dea5c634102d704bd0de1a86aaa9db9928e3b2c40b56bdf55a

      • C:\Users\Admin\AppData\Local\Temp\Messenger\setup.exe

        Filesize

        20KB

        MD5

        25611a17e8fa86c06f72805ee366bf88

        SHA1

        c2545e739bb3e5c8e6444ca2f2e862c2f96efce7

        SHA256

        5a7170ed849ce5d0c68d692242e49b93d92cf42b61f26bdfd267b814bb16d87b

        SHA512

        bc71e5f5830db7532e88fa25ba231ab0a1b50b48c0e46e309793fb1ee4c00e9b3aa0f1f39a2df0dea5c634102d704bd0de1a86aaa9db9928e3b2c40b56bdf55a

      • C:\Users\Admin\AppData\Local\Temp\Messenger\sysmain.dat

        Filesize

        72KB

        MD5

        2faf28a33db1011d34fd366e135269aa

        SHA1

        fb4bc6f51087b5cd7044a1c60f408631d8bb422e

        SHA256

        4afdcf172222ceb8101a295c296763c1bf15f72359c488f01f4aa1f822390529

        SHA512

        460d5bb59368ae914a65ce2ec13e561ff99176ebc5fa45d1594a057060c87401a28dc5b3d4181fea4bb31db3a1048e68da6a72ae73210a73d64a24805d224027

      • C:\Users\Admin\AppData\Local\Temp\Messenger\sysvc.dat

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • C:\Windows\SysWOW64\lsyci.exe

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • C:\Windows\SysWOW64\lsyci.exe

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • C:\Windows\SysWOW64\mssrcid.ini

        Filesize

        38B

        MD5

        af9309b2ab8b161f21830846b9bbbe68

        SHA1

        909a1ed5f7b6cc41509ffb841dcad0992a8e4b52

        SHA256

        b66aa96674c6f5edeb8d41dd8c50b77c0a2507a98f1b8b213209b067fd5f1abc

        SHA512

        18f154e7a3ec880fec169d29842b84a1b0c24c00b8db5b451df9f0d2d9d17cd863b7e7519a04e9fe5d054a9881b31dc120ff03ffcdc1f85aa7868218507cdd3a

      • C:\Windows\lsyfi.exe

        Filesize

        48KB

        MD5

        44567c8c8e3ee00c7425af6a91a942bb

        SHA1

        ca7606b9cda45f899b7d6a2c848f27cf74a5f712

        SHA256

        5cbcbde84990728895fa76768f288d94404aa273e3e19f22b08abf61cfb97c0e

        SHA512

        96cf2cf362fef46bd7060f0869a7c8df6baa3f197294a3bd4e05ff929dcfd3ee02c2ace5d78f35a01c8b273c8542adaffbfdb5bdcb4ec2b75197f6bca31b0137

      • C:\Windows\lsyfi.exe

        Filesize

        48KB

        MD5

        44567c8c8e3ee00c7425af6a91a942bb

        SHA1

        ca7606b9cda45f899b7d6a2c848f27cf74a5f712

        SHA256

        5cbcbde84990728895fa76768f288d94404aa273e3e19f22b08abf61cfb97c0e

        SHA512

        96cf2cf362fef46bd7060f0869a7c8df6baa3f197294a3bd4e05ff929dcfd3ee02c2ace5d78f35a01c8b273c8542adaffbfdb5bdcb4ec2b75197f6bca31b0137

      • C:\Windows\sysrcid.ini

        Filesize

        49B

        MD5

        fd6fddb4d376b7c2a2db96a188ebc917

        SHA1

        d527793eedcdef9320e4c4318b3fe3bd7dac177f

        SHA256

        2a9982a142aad9a017c20702cc8d3358c63e7f0793b6c39c825be350cbdf5111

        SHA512

        854769f2b20cdaaa8a2994ef61ac7f4fa03e74bcacbadd5989e0e7356a9ca3adf43d687dfbec386c376ce57b0e19b1b6858192c1605bf1b27972e5d3623a58f5

      • \Users\Admin\AppData\Local\Temp\Messenger\install.exe

        Filesize

        20KB

        MD5

        77a8d625eb2e0585972b610d644371cd

        SHA1

        5b3a1932fe4ebcecdee450eeac6ad6dce2078808

        SHA256

        18a92c482c6fdb30ac0d0384f165c34018c807f39c79ec74f08047d2a89e86bd

        SHA512

        e4ef5ec88779e75f264ccbc699aee04c7801b09f437c52635751585271ce406c166ee01875747fa9e2bef104abff2718a9740c3bd2f145f19a59d9a4cfb28dae

      • \Users\Admin\AppData\Local\Temp\Messenger\install.exe

        Filesize

        20KB

        MD5

        77a8d625eb2e0585972b610d644371cd

        SHA1

        5b3a1932fe4ebcecdee450eeac6ad6dce2078808

        SHA256

        18a92c482c6fdb30ac0d0384f165c34018c807f39c79ec74f08047d2a89e86bd

        SHA512

        e4ef5ec88779e75f264ccbc699aee04c7801b09f437c52635751585271ce406c166ee01875747fa9e2bef104abff2718a9740c3bd2f145f19a59d9a4cfb28dae

      • \Users\Admin\AppData\Local\Temp\Messenger\install.exe

        Filesize

        20KB

        MD5

        77a8d625eb2e0585972b610d644371cd

        SHA1

        5b3a1932fe4ebcecdee450eeac6ad6dce2078808

        SHA256

        18a92c482c6fdb30ac0d0384f165c34018c807f39c79ec74f08047d2a89e86bd

        SHA512

        e4ef5ec88779e75f264ccbc699aee04c7801b09f437c52635751585271ce406c166ee01875747fa9e2bef104abff2718a9740c3bd2f145f19a59d9a4cfb28dae

      • \Users\Admin\AppData\Local\Temp\Messenger\install.exe

        Filesize

        20KB

        MD5

        77a8d625eb2e0585972b610d644371cd

        SHA1

        5b3a1932fe4ebcecdee450eeac6ad6dce2078808

        SHA256

        18a92c482c6fdb30ac0d0384f165c34018c807f39c79ec74f08047d2a89e86bd

        SHA512

        e4ef5ec88779e75f264ccbc699aee04c7801b09f437c52635751585271ce406c166ee01875747fa9e2bef104abff2718a9740c3bd2f145f19a59d9a4cfb28dae

      • \Users\Admin\AppData\Local\Temp\Messenger\setup.exe

        Filesize

        20KB

        MD5

        25611a17e8fa86c06f72805ee366bf88

        SHA1

        c2545e739bb3e5c8e6444ca2f2e862c2f96efce7

        SHA256

        5a7170ed849ce5d0c68d692242e49b93d92cf42b61f26bdfd267b814bb16d87b

        SHA512

        bc71e5f5830db7532e88fa25ba231ab0a1b50b48c0e46e309793fb1ee4c00e9b3aa0f1f39a2df0dea5c634102d704bd0de1a86aaa9db9928e3b2c40b56bdf55a

      • \Users\Admin\AppData\Local\Temp\Messenger\setup.exe

        Filesize

        20KB

        MD5

        25611a17e8fa86c06f72805ee366bf88

        SHA1

        c2545e739bb3e5c8e6444ca2f2e862c2f96efce7

        SHA256

        5a7170ed849ce5d0c68d692242e49b93d92cf42b61f26bdfd267b814bb16d87b

        SHA512

        bc71e5f5830db7532e88fa25ba231ab0a1b50b48c0e46e309793fb1ee4c00e9b3aa0f1f39a2df0dea5c634102d704bd0de1a86aaa9db9928e3b2c40b56bdf55a

      • \Users\Admin\AppData\Local\Temp\Messenger\setup.exe

        Filesize

        20KB

        MD5

        25611a17e8fa86c06f72805ee366bf88

        SHA1

        c2545e739bb3e5c8e6444ca2f2e862c2f96efce7

        SHA256

        5a7170ed849ce5d0c68d692242e49b93d92cf42b61f26bdfd267b814bb16d87b

        SHA512

        bc71e5f5830db7532e88fa25ba231ab0a1b50b48c0e46e309793fb1ee4c00e9b3aa0f1f39a2df0dea5c634102d704bd0de1a86aaa9db9928e3b2c40b56bdf55a

      • \Users\Admin\AppData\Local\Temp\Messenger\setup.exe

        Filesize

        20KB

        MD5

        25611a17e8fa86c06f72805ee366bf88

        SHA1

        c2545e739bb3e5c8e6444ca2f2e862c2f96efce7

        SHA256

        5a7170ed849ce5d0c68d692242e49b93d92cf42b61f26bdfd267b814bb16d87b

        SHA512

        bc71e5f5830db7532e88fa25ba231ab0a1b50b48c0e46e309793fb1ee4c00e9b3aa0f1f39a2df0dea5c634102d704bd0de1a86aaa9db9928e3b2c40b56bdf55a

      • \Windows\SysWOW64\lsyci.exe

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • \Windows\SysWOW64\lsyci.exe

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • \Windows\SysWOW64\lsyci.exe

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • \Windows\SysWOW64\lsyci.exe

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • \Windows\SysWOW64\lsyci.exe

        Filesize

        40KB

        MD5

        9a021dbd3152bf4d3dc38d9975f7be67

        SHA1

        28974032218ad790b04b40c98a129710b9f73c61

        SHA256

        ab1771260f5b6fe32973f7c9f4544883f46ebdecc9bc584c7613a6f0f4513e62

        SHA512

        6373fca5e3a33afc7c7c1937c97ffded60d3fc2a6d5a1aa072a486579b0ba1c9f0e1e49551381a87649657c90faa40aa3ad0f5d7e598e1e452c3ddba91fd81f5

      • \Windows\SysWOW64\ohbxr.dll

        Filesize

        72KB

        MD5

        2faf28a33db1011d34fd366e135269aa

        SHA1

        fb4bc6f51087b5cd7044a1c60f408631d8bb422e

        SHA256

        4afdcf172222ceb8101a295c296763c1bf15f72359c488f01f4aa1f822390529

        SHA512

        460d5bb59368ae914a65ce2ec13e561ff99176ebc5fa45d1594a057060c87401a28dc5b3d4181fea4bb31db3a1048e68da6a72ae73210a73d64a24805d224027

      • \Windows\SysWOW64\ohbxr.dll

        Filesize

        72KB

        MD5

        2faf28a33db1011d34fd366e135269aa

        SHA1

        fb4bc6f51087b5cd7044a1c60f408631d8bb422e

        SHA256

        4afdcf172222ceb8101a295c296763c1bf15f72359c488f01f4aa1f822390529

        SHA512

        460d5bb59368ae914a65ce2ec13e561ff99176ebc5fa45d1594a057060c87401a28dc5b3d4181fea4bb31db3a1048e68da6a72ae73210a73d64a24805d224027

      • \Windows\SysWOW64\ohbxr.dll

        Filesize

        72KB

        MD5

        2faf28a33db1011d34fd366e135269aa

        SHA1

        fb4bc6f51087b5cd7044a1c60f408631d8bb422e

        SHA256

        4afdcf172222ceb8101a295c296763c1bf15f72359c488f01f4aa1f822390529

        SHA512

        460d5bb59368ae914a65ce2ec13e561ff99176ebc5fa45d1594a057060c87401a28dc5b3d4181fea4bb31db3a1048e68da6a72ae73210a73d64a24805d224027

      • \Windows\SysWOW64\ohbxr.dll

        Filesize

        72KB

        MD5

        2faf28a33db1011d34fd366e135269aa

        SHA1

        fb4bc6f51087b5cd7044a1c60f408631d8bb422e

        SHA256

        4afdcf172222ceb8101a295c296763c1bf15f72359c488f01f4aa1f822390529

        SHA512

        460d5bb59368ae914a65ce2ec13e561ff99176ebc5fa45d1594a057060c87401a28dc5b3d4181fea4bb31db3a1048e68da6a72ae73210a73d64a24805d224027

      • memory/1228-54-0x0000000075561000-0x0000000075563000-memory.dmp

        Filesize

        8KB